{"instruction": "You are an expert in relationship extraction. Please extract relationship triples that match the schema definition from the input. Return an empty list for relationships that do not exist. Please respond in the format of a JSON string.", "schema": ["city of headquarters", "country of headquarters", "founded", "else"], "input": "On August 20 2007 Prince was selected to be a part of Team  USA  that competed at the 2007  FIBA Americas Championship  a qualifying tournament for the Beijing Olympics ."}
{"city of headquarters": [], "country of headquarters": [], "founded": [], "else": []}